Solatube Ø 74 cm system single dome
May 16, 2022
Solatube Ø 74 cm system collector with single dome
May 16, 2022

Solatube Ø 74 cm system double dome

Solatube Ø 74 cm series is a line of modular, high output tubular daylighting devices that deliver massive amounts of daylight to large volume spaces with high, open ceilings.

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Diffuser type Round
BBA Technical Approval No
FM approval Yes
CE / Declaration of Performance Yes
Solar Impulse Efficient Solution approval Yes
ETIM class EC003113 daylight system
Maximum standard length 56 cm depending on the height of the flashing
Recommended maximum tube length Maximum 20 metres
Product guarantee 10 years
Solar energy transmittance (EN 410) g‐value = 0.61
External Fire Performance of roofs (EN 13501-5) BROOF(t4)
CRI – color rendering index CRI = 100
Airborne sound insulation (EN ISO 717‐1) 65 (- 2;-7) Db
Resistance to impact (EN 1873) SB 1350
Upward Load (EN 1873) UL 3352
Downward Load (EN1873) DL 7182


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Cad Drawing


Cad Drawing PDF Solatube Ø 74 cm system double dome T874102-74

FM quality mark


FM quality mark - approval Solatube Ø 74 cm

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